Of three force balance experimental device

摘要

(57) [summary] [object of the present invention, the three forces also arbitrarily varying respectively the position of the weight that was distributed to the left and right to balance the center of the weight that has been suspended from the point of action P of the three forces of power to provide an experimental device to be understood that the balance of the vector does not change. The A fixed pulley on the support plate at both ends on the frame to be formed in a substantially rectangular arranged, the guide plate has been vertically to the left and right of the support plate may be provided respectively movable pulley movable in the vertical direction, whereas the movable pulley as well as the other movable pulley when you pull downward to connect with a string through the constant pulley the left and right of the movable pulley to upward movement of the, the left and right of the left and right of the weight that is distributed from the three forces of the working point P and to balance the center of the weight from the movable pulley in each hanging. Therefore, it allows visually to be understood that the positions and also balance the relationship between the three power changes the position of the working point P of the left and right weights to move the movable pulley guide inner plate in the left and right vertically unchanged I was.